<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/car/updateCar">
    <input type="hidden" name="carId" th:value="${car.carId}">
    <input type="text" name="carName" th:value="${car.carName}">
    <input type="submit" value="修改">
</form>
</body>
</html>